[BUG] <extra_hosts array items[0,1] must be unique> #12155
Description
Description
Docker compose file is seen as invalid.
code is:
foo:
<<: *base
container_name: foo
build:
context: ../foo
<<: *docker-build-args
command: [ 'nodemon', 'entrypoints/bugs' ]
dns:
- '8.8.8.8'
dns_search: internal.namespace
extra_hosts:
- 'host.docker.internal:host-gateway'
Steps To Reproduce
$> docker compose version
Docker Compose version v2.29.6
error message:
validating /home/$USER/Projects/docker-compose.yml: services.foo.extra_hosts array items[0,1] must be unique
Compose Version
v2.29.6
Docker Environment
$> docker version
Client: Docker Engine - Community
Version: 27.3.0
API version: 1.47
Go version: go1.22.7
Git commit: e85edf8
Built: Thu Sep 19 14:25:51 2024
OS/Arch: linux/amd64
Context: default
Server: Docker Engine - Community
Engine:
Version: 27.3.0
API version: 1.47 (minimum version 1.24)
Go version: go1.22.7
Git commit: 41ca978
Built: Thu Sep 19 14:25:51 2024
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.7.22
GitCommit: 7f7fdf5fed64eb6a7caf99b3e12efcf9d60e311c
runc:
Version: 1.1.14
GitCommit: v1.1.14-0-g2c9f560
docker-init:
Version: 0.19.0
GitCommit: de40ad0
Anything else?
Linked to #11371